RFR: 8179444: AArch64: Put zero_words on a diet

[Andrew Haley]

On 05/05/17 23:54, White, Derek wrote:

>    - Unless ClearArray only zero's from the first array element on -
> then we could guess if base is 16-byte unaligned by looking at the
> array header size.

I think the heap is only HeapWord-aligned anyway.  I hope that in the
future there will be no hardware penalty for word-aligned STRD.  In
the meantime I'm not at all eager to put a load of special-purpose
tweaks into the AArch64 port.

Andrew.